230 results about "Storage heater" patented technology

A representatively pumpless water heater system has an instantaneous water heater coupled in series with a storage water heater by piping circuitry incorporating a bypass valve and a mixing valve and useable to route pressurized incoming cold water sequentially through the instantaneous and storage type heaters. A control system (1) operates the bypass valve to cause a selectively variable portion of the incoming cold water to bypass the instantaneous heater and flow to the mixing valve, and (2) operates the mixing valve to blend the bypassed cold water with hot water exiting the storage heater to maintain a predetermined temperature of heated water exiting the system. Another system embodiment adds a directional bypass valve operable by the control system to selectively divert to the mixing valve a portion of the heated water exiting the instantaneous heater for delivery to the storage heater.

The invention relates to a heat-storage heat-power co-generation unit and electric boiler based wind curtailment absorption coordinated dispatching model. The model is characterized in that on the basis of analyzing a working principle of a heat-storage heat-power co-generation unit, it is proposed to calculate a heat supply amount of an electric boiler maximally absorbing wind curtailment electric energy, and different working modes of a heat storage apparatus and the economy of heat-storage heat-power co-generation and electric boiler coordinated heat supply are compared. A calculation result shows that the heat supply of the electric boiler has optimal economy during maximal wind curtailment absorption. According to the model, the wind curtailment absorption space of a power grid can be further expanded, the dispatching cost can be reduced, and a scientific basis can be provided for a power grid dispatching department to make a day-ahead dispatching plan.

Embodiments of this invention relate generally to high temperature thermal energy storage, and more specifically, to the use of the latent heat of fusion of melting and solidifying metals to receive from and provide heat to a gaseous medium. Embodiments of this invention are also known as the Liquid Metal Thermal Storage system or LIMETS. Also described are methods of containing the storage material, heat transfer means, and choices of metals and alloys for thermal storage materials.

The invention relates to a waste acid concentration multistage treatment method which comprises the following steps of: heating 20-22% waste acid by a preheater, evaporating by a one-effect evaporation heater and a double-effect evaporation heater, cooling by a cooler and crystallizing by a crystallizer; heating by a triple-effect evaporation heater and separating by a separator to obtain 65% concentrated acid. The secondary steam part is used as a heat source part of the next stage heater and is condensed by spraying cooling water, wherein the one-effect evaporation heater and the double-effect evaporation heater are falling film graphite tube array evaporation heaters; the triple-effect evaporation heater is a floating head tube array graphite heat exchange. The water evaporation capability of the method is increased from 2.5 tons to 10 tons, and the stage number is 3 or more. A large amount of steam and cooling water is saved, and the pollution to the environment is reduced. The heat exchange area of equipment is reduced by 30%, and materials are saved and manufacturing cost is reduced correspondingly. The heat of steam is fully utilized, more than 35% of steam is saved, and more than 30% of cooling water can be saved. The condensed water part of the steam is used as the hear source part of the preheater and is recycled for other uses.

A storage canister is provided. The storage canister in one example includes an enclosure, multiple Hard Disk Drives (HDDs) located within the enclosure, a plurality of mounting elements configured to receive the multiple HDDs, wherein each mounting element of the plurality of mounting elements is configured to receive a HDD, a plurality of suspension elements supporting the plurality of mounting elements, with each suspension element of the plurality of suspension elements supporting and providing vibration isolation to a corresponding HDD of the multiple HDDs, and an external connector configured to be externally accessible, with the external connector being electrically coupled to the plurality of mounting elements.

The invention relates to a solar heat-collection energy-storage greenhouse, which comprises a greenhouse main body formed by a front wall, a rear wall, a gable wall, a steel bridge beam, a rear roof and a front roof, wherein the front roof is controlled by a curtain rolling machine. The invention is characterized in that the solar heat-collection energy-storage greenhouse additionally comprises a solar heat collector formed by a plurality of solar heat collecting tubes and a heat storage water tank, the solar heat collecting tubes are arranged at the top of the greenhouse main body through a support, the rear wall is formed by a plurality of energy-storage heat-preservation plates with sinuous coils in the internal part in a splicing way, the sinuous coils of adjacent energy-storage heat-preservation plates are connected in series to form a through tube, the water inlet and the water outlet of the through tube are respectively connected with the water outlet and the water inlet of the heat storage water tank through pipelines, and a water pump is connected on each pipeline. The prefabricated assembled solar heat-collection energy-storage greenhouse can be widely used in rural areas lacking for coal and electricity and can be used for planting vegetables and flowers, the energy is saved and the environment is protected, the heat preservation performance is good and the industrial standard of the fuel-free greenhouse is genuinely satisfied.

The invention provides an organic / inorganic hybrid phase-change energy-storage material with enhanced thermal conductivity and a preparation method thereof, belonging to the energy storage technical field. The preparation method comprises the following steps: taking an inorganic compound with enhanced thermal conductivity connected by chemical bonds as a supporting material, and taking an organicphase-change energy-storage material as a working substance; hydrolyzing and condensing with an inorganic compound-sol precursor; and compounding and hybridizing with the organic phase-change material to obtain the organic / inorganic hybrid phase-change energy-storage material. The organic / inorganic hybrid phase-change energy-storage material has the advantages of good shaping property, high energy storage density and wide application prospect, thus being applicable to the fields such as energy-saving building materials, solar energy storage and utilization, industrial waste heat recovery and the like.

The invention discloses an ice cold accumulation supplying cold equipment of city bus including accumulation ice trough, draining valve, circulating pump, scroll heat exchanger, condensate drainpipe, screw type ventilator, circulating pipe, expansion tank, triple valve and expansion pipe. The equipment is no compressor, using miniwatt circulating pump to conquer flow resistance of secondary refrigerant circulating pipe and scroll heat exchanger, secondary refrigerant circulating pipe is drove by circulating pump and transport the energy of accumulation ice trough to scroll heat exchanger, the heat air in the bus flows along scroll heat exchanger shell pass, then be cooled by scroll heat exchanger to deliver into bus, so bus indoor cooling realized. The ice is supplied by ice house utilizing low-cost night electric energy to release bus engine load, induce tail gas discharge and no condensation heat extraction. The equipment is character by simple structure, environmental protection, low cost, easy fixing and so on.

The invention discloses a fuse salt phase-change heat storage electric boiler. The fuse salt phase-change heat storage electric boiler comprises a boiler tank body, the interior of the boiler tank body is portioned into a heat transferring cavity and a heat storage cavity through a partition plate, and a heat storage medium is arranged in the heat storage cavity. A heat transferring medium is arranged in the heat transferring cavity, an immersed-type electric heater is arranged in the heat storage cavity, and the heat storage cavity is connected with a heat storage medium inlet and a heat storage medium outlet. The heat transferring cavity is connected with a heat transferring medium inlet and a heat transferring medium outlet, and a set of heat tubes penetrating through the partition plate are arranged in the boiler tank body. According to the fuse salt phase-change heat storage electric boiler, a heat tube exchanger is adopted, compared with an ordinary exchanger, the heat transferring performance is better, storage heat can be rapidly extracted, and efficient heat transferring is achieved; through the diode characteristic of the heat tubes, heat one-way transferring is ensured,and heat back flowing is prevented; and through the heat switch characteristic of the heat tubes, the work temperature range of the heat storage medium is controlled, it is ensured that solid-liquid phase-change circulation occurs near fused points, and the phase-change energy storage characteristic of fuse salt is maintained.

The invention discloses a preparation method of a phase-change energy-storage material. The preparation method comprises the following steps: modifying fly ash with an organic acid, and then preparing the phase-change energy-storage material from the organic acid modified fly ash, a phase-change substance, and a heat-conductive performance modifier. The preparation method takes cheap fly ash as the raw material, then uses an organic acid to modify the fly ash so as to enlarge the pore volume of the fly ash, at the same time the carrier frame is not damaged; furthermore, part of the organic acid will be embedded into the frame mainly made of fly ash to strengthen the frame, so the phase-change substance absorption rate of an energy-storage material made of the modified fly ash can reach 65% or more, and the usage period is prominently prolonged.

The invention relates to a nano zirconium carbide induction heat-storage heat-preservation polyester fiber and a preparation method thereof. The preparation method comprises the steps of: adding 1.0-8.0% of nano zirconium carbide using as an additive in an online manner to evenly blend and fuse together with a polyester chip in a screw rod, extruding blend melt from a spinneret micro-hole, winding the extruded blend melt at the winding speed of 3000-3200m / min to prepare a POY (polyester pre-oriented yarn) silk tube by using the processes of cooling, curing, oiling and bundling by a nozzle, stretching to deform after balancing, so as to prepare the nano zirconium carbide induction heat-storage heat-preservation polyester fiber. The nano zirconium carbide induction heat-storage heat-preservation polyester fiber has the functions of efficiently and selectively absorbing visible light and a near infrared ray in a solar radiation ray, and reflecting the heat radiation of a human body, so as to have the functions of two-way temperature induction adjustment and heat preservation, changes the heat-storage mode of cold protective clothing, and has the characteristics of being high in additional value, good in quality and significant in cost performance.

The invention provides a refrigerator. The refrigerator comprises multiple storage chambers, a cooler, a cooling chamber, an air feeder, an air feeder cover, and at least one branch air feeding device. The cooler cools the air provided for the multiple storage chambers. The cooling chamber is equipped with the cooler, and is provided with an air feeding port communicating with the multiple storage chambers. The air feeder is arranged at the air feeding port, and is configured to feed the air cooled by the cooler to the multiple storage chambers. The air feeder cover is movably arranged on the air-out side of the air feeder, and is provided with an opening through which the cooling air passes when the air feeding port is closed, so that the cooling chamber can be communicated with a part of the storage chambers through the opening under a condition that the air feeding port is closed by the air feeder cover. Each branch air feeding device is configured to receive the cooling air sent through the air feeding port, and distributes the cooling air, so that the cooling air can enter one or more storage spaces in one storage chamber. According to the invention, the cooling air can be optimally configured, and the cooling air can be reasonably distributed into each storage chamber.

The invention discloses a preparation method of a metal oxide nanosheet and carbon nanotube composite energy-storage material. The preparation method comprises the following steps: firstly, modifying a carbon nanotube by sulfonated polystyrene; secondly, growing a metal hydroxide precursor on the modified carbon nanotube by adopting an oil bath process; and finally, calcining the precursor in the atmosphere of nitrogen gas, thereby obtaining the metal oxide nanosheet and carbon nanotube composite energy-storage material. The preparation method is characterized in that the composite energy-storage material is prepared by adopting a simple chemical synthesis means and has a high specific surface area and the good conductivity, and both the capacity and the stability of the energy-storage material are superior to those of a traditional metal oxide nanosheet and carbon nanotube composite energy-storage material.

The invention discloses a composite phase-change energy-storage material and a preparation method thereof and aims to provide a composite phase-change energy-storage material with high phase-change latent heat, leakage resistance, good heat-conducting performance and low cost and a preparation method thereof. The invention adopts the technical scheme that the composite phase-change energy-storage material comprises a stearic acid phase-change material and nerchinskite as a material combined with the stearic acid phase-change material. The preparation method comprises the following steps of: (1) drying the nerchinskite in vacuum at 150-250 DEG C for 1-3h and cooling to a room temperature; (2) adding an ethanol solution of sulphuric acid to the nerchinskite, stirring at 30-50 DEG C for 3-5h, filtering, washing with the ethanol solution to be neutral and carrying out suction filtration; (3) drying at 70-90 DEG C and grinding to prepare a stearic acid phase-change material carrier; (4) preparing an ethanol solution of the stearic acid; and (5) putting the ethanol solution of the stearic acid into the dispersion liquid of the nerchinskite and the ethanol and drying at 80 DEG C to have constant weight so as to obtain a stearic acid / nerchinskite composite phase-change energy-storage material. The invention is used for heat-storage materials.

The invention discloses a simulation test bench for a closed Brayton circulating power generation system. The simulation test bench comprises a test piece, a heater and a cooler; a heater exhaust portcommunicates with a turbine inlet in the test piece through a pipeline; a heater gas inlet communicates with a heat regenerator hot end outlet in the test piece through a pipeline; the heat regenerator hot end outlet in the test piece communicates with a cooler gas working medium inlet through a pipeline, a cooler gas working medium outlet communicates with a gas compressor inlet in the test piece through a pipeline, and thus a closed gas loop is formed; and a vacuum pump communicates with a gas flow channel in a heater body through a vacuum pipeline and is used for vacuumizing the formed closed gas loop. The heater adopts an electromagnetic induction graphite heat-storage type heater, the simulation temperature can be effectively increased, the heater can work continuously and uninterruptedly for a long time, the temperature of the working medium with residual heat is decreased to the normal temperature through the cooler, and thus it is ensured that the working medium can circulatesmoothly.

The utility model discloses a non-pressure-bearing outlet-open water-storage water heater which comprises a water tank 1, a cold water inlet pipe 2, a hot water outlet pipe 2, an electric heating pipe 4, a small-capacity chamber 21 at the highest water level, and a water nozzle 18, and is characterized in that (1) in the water tank 1, the upper end of the hot water outlet pipe 3 directly extends into the small-capacity chamber 21 at the highest water level; the lower end of the hot water outlet pipe is connected with a hot water outlet 18-5 of the water nozzle 18, and communicated with a shower head port 18-7; the hot water outlet pipe 3 is always communicated with an atmosphere by the shower head port 18-7 no matter a handle 18-3 of the water nozzle 18 is opened or closed; and hot water can be mixed with cold water in the water nozzle 18 to adjust the water temperature. The water heater has the advantages that in the water tank, the water directly meets with the atmosphere, and the working pressure is 0, so that weld cracks and water leakage caused by thermal expansion and cold contraction can be avoided, and water tank explosion due to the fact that the electric heating pipe works for a long time and is full of steam due to a circuit fault can be avoided.

A representatively pumpless water heater system has an instantaneous water heater coupled in series with a storage water heater by piping circuitry incorporating a fixed (and selectively fixed) bypass useable to route pressurized incoming cold water sequentially through the instantaneous and storage type heaters. The fixed bypass can also route pressurized incoming cold water to mix with the heated water exiting the instantaneous heater for delivery to the storage heater.

The invention relates to solar refrigeration low temperature grain storing air conditioning system. It belongs to energy saving technical field. It includes solar heat collection device and high efficiency back-heating back-quality continuous refrigeration adsorption refrigerating machine, control system, grain storage air supply and air conditioning system. Compared with absorption refrigerating machine, it has lower driving hot source temperature and cost. And compared with intermittent, it can automatically and continuously do refrigeration, and has higher coefficient of performance. And it can be widely used in grain storing department.

The invention provides a phase-change heat-storage heat-pump water heater, a control method and device thereof, and a storage medium. The phase-change heat-storage heat-pump water heater comprises a cold water inlet pipe, a hot water outlet pipe, an evaporator, a compressor, a four-way valve, a phase-change heat-storage box and a throttling component, wherein the evaporator, the compressor, the four-way valve, the phase-change heat-storage box and the throttling component are connected in sequence; a condensation heat-exchange tube and a hot-water heat-exchange tube are alternately arranged inthe phase-change heat-storage box, and the gap between every two of the condensation heat-exchange tube, the hot-water heat-exchange tube and the inner wall of the phase-change heat-storage box is filled with phase-change heat-storage materials; a refrigerant inlet of the condensation heat-exchange tube is sequentially connected with the compressor, the four-way valve, the evaporator and the throttling component through a pipeline and then is connected to a refrigerant outlet of the condensation heat-exchange tube; the two ends of the hot-water heat-exchange tube are separately connected withthe cold-water inlet pipe and the hot-water outlet pipe; and an auxiliary heating device is arranged on the cold water inlet pipe. By adoption of the technical scheme, the requirement of users for hot water can be met, the size and weight of the heat-pump water heater are effectively reduced, and meanwhile, electric energy is saved.

The invention relates to a preparation technology of Ce-Zr-based oxygen-storage materials, and belongs to the technical field of oxygen-storage material preparation. The preparation technology of the Ce-Zr-based oxygen-storage materials comprises the steps of material dissolving, mixing, sedimentation, heat insulation treatment, washing, firing and breaking. Carbonate of Ce, Zr and rare earth elements is adopted as raw materials in material dissolving. The rare earth elements comprise two or more kinds of La, Y, Pr and Nd. Heat insulation treatment is carried out when sedimentation is finished, the heat insulation temperature ranges from 30 DEG C to 50 DEG C, and the heat insulation time ranges from 0.5 hour to 4 hours. High-temperature heat treatment and a pressure container are not needed, the aim can be achieved only through low-temperature heat insulation, the safety factor is improved, and production cost is obviously lowered. The preparation technology is easy to operate and control, and large-scale production is facilitated. The specific surface area of a fresh product manufactured through the preparation technology is still higher than 45 m<2> / g after aging is carried out for 10 hours at 1000 DEG C, and the oxygen storage amount is higher than 700 micro-mol / g.

The invention provides a preparation method for molded biomass active carbon with crop straw as a raw material. The method comprises the following steps: (1) rinsing: a step of rinsing crop straw with water so as to remove adhered substances; (2) drying; (3) crushing; (4) sieving; (5) charring: a step of subjecting straw powder to anoxic charring at a temperature of 700 DGE C for 8 h; (6) activation: a step of carrying out activation by using phosphoric acid; (7) washing; (8) drying; (9) sieving; (10) molding: a step of mixing biomass active carbon with an aqueous solution of carboxymethylcellulose sodium (CMC) and compacting the obtained mixture at normal temperature and under certain pressure so as to obtain a cylindrical molded block with a diameter of 1 cm and height of 2 cm; and (11) heat treatment. The method provided by the invention overcomes the problems of resource waste, sever environmental pollution, destroy of a farmland soil structure and great threat to industrial and agricultural production and traffic safety caused by piling or on-site burning of crop straw in the countryside; the molded biomass active carbon is prepared from crop straw and extensively used in industries like gas transport carriers, environment adsorption material, natural gas adsorption and storage materials, hydrogen storage materials, refrigeration adsorbents, catalyst carriers, electrode materials, etc., so resource utilization of crop straw is realized.

A heat-storage heater which has a function of compensating a time lag between the generation and emission of heat and comprises a device such as a heat exchanger or electric heater supplying heat to a heat-storing material 1 capable of being supercooled, the heat-storing material 1 being filled into a plurality of small containers 2, a device such as a heat exchanger, thermoelectric element, electrodes, or vibrator 3 for releasing the supercooled state of the heat-storing material, and a thermal radiation surface.

A phase-change energy storage and heating device (1) comprises an energy storage equipment box body (2) and a central heat storage assembly, wherein the central heat storage assembly comprises a heating water-outlet water distributor (3), a heat-storage water-return water distributor (4), a heating water-return water distributor (5), a heat-storage water-outlet water distributor (6) and phase-change heat storage elements (7); the heating water-outlet water distributor (3) and the heat-storage water-return water distributor (4) are arranged at the upper part of the energy storage equipment box body (2); the heating water-return water distributor (5) and the heat-storage water-outlet water distributor (6) are arranged at the lower part of the energy storage equipment box body (2); and the phase-change heat storage elements (7) are arranged at the middle of the energy storage equipment box body (2), and distributed in an array or a laminate. The phase-change energy storage and heating device has the following functions: various phase-change heat storage materials can be converted into heat storage elements, and the heat storage elements can be distributed according to the unified arrangement mode and structure in different containers for heat storage and heating. Therefore, the heating energy consumption of the city life can be lowered, and the comprehensive recovery and utilization ratio of industrial waste heat can be improved.

To provide a storage water heater capable of increasing thermal efficiency and quickly boiling when tap water is supplied into a hot-water tank. A storage water heater can heat low-temperature water having a high density because hot water in a hot-water tank is led from a lead-in pipe positioned at the bottom of the hot-water tank to a gas heater. Also, a water supply pipe outlet and a lead-in pipe inlet are provided so as to be opposed to each other on the same axis. Therefore, when tap water is supplied from a water supply pipe, the tap water lower in temperature than the hot water in the hot-water tank is preferentially led to the gas heater. With this, hot water at the lowest temperature in the hot-water tank can be selectively heated, thereby increasing thermal efficiency.

The invention discloses an inorganic phase-change energy-storage material. The energy-storage material is prepared form 94-97 parts of energy-storage basis materials, 0.2-1.0 part of functional additive, 2.0-3.5 parts of nucleating agent and 0.8-1.5 parts of surfactant. The inorganic phase-change energy-storage material is stable in performance, low in price, rich in raw material, convenient to prepare, large in latent heat of phase change, nontoxic and high in heat conductivity, and the inorganic phase-change energy-storage material can be widely applied to multiple fields such as a solar low-temperature heat-storage system and a household daily heat preservation and household hot water storage system.

This refrigerator is provided with: a storage compartment having an opening at the front; a first light-emitting part (20a) disposed on the ceiling of the storage compartment; a first light detection part (21a) that detects light being emitted by the first light-emitting part (20a); and a recess (84) disposed on a side of the storage compartment. The first light detection part (21a) is disposed inside the recess. A refrigerator that is capable of estimating the storage state of items stored inside the refrigerator is thus provided. By performing control according to the storage state, the protection of freshness can be improved, and power consumption can be minimized by preventing excess refrigeration.

a solar thermal power generation system includes a solar heat collection system that generates superheated steam by solar heat, a main power generation system that performs power generation by part of the superheated steam generated by the solar heat collection system, a solar heat storage / release system that stores heat in a heat storage medium or releases the heat stored in the heat storage medium, and a secondary power generation system that performs power generation by saturated steam generated by the heat storage or the heat release in the solar heat storage / release system. The solar heat storage / release system includes a heat storage heater for exchanging heat between the rest of the superheated steam generated by the solar heat collection system and the heat storage medium to store heat in the heat storage medium and to generate saturated steam, a low-temperature tank for containing the heat storage medium to be supplied to the heat storage heater, and a high-temperature tank for containing the heat storage medium after the heat storage in the heat storage heater. The secondary power generation system includes a saturated steam turbine into which the saturated steam generated by the heat storage heater can be introduced.

The invention discloses a multifunctional drying system integrating solar energy and a heat pump. The system comprises a solar heat collector, a plurality of valves, a storage water tank, a drying room, a circulating fan, a coil pipe mounted on the wall in the drying room, a segregation board, a circulating water pump, a condenser, a compressor, an evaporator, an expansion valve, an air inlet fan and an air exhausting fan. The system combines the characteristics of the solar energy and the power supply of the heat pump, so that the continuous drying operation can be performed in different weather conditions; three running modes, including a solar energy-storage heat-supply mode (single), a heat pump drying de-humidifying mode (single) and a solar energy heat pump combined energy-storage heat-supply mode, can be realized by switching or combining the multiple energy-supply modes by the system; the system has the advantages that the temperature in the drying room is relatively uniform; the problems of hot air dead space and non-uniform distribution of the indoor temperature existing in a conventional drying room are solved; the energy-saving effect is good; the functions of the heat pump and the solar energy are taken fully used; when the drying room is not in work, the drying room can be used for supplying hot water for accumulating heat and warming, so that the drying system is multifunctional and the function of the drying system is brought into full play.

The invention relates to a phase-change energy-storage water heater. The water heater comprises a heat exchanger shell, wherein a heat insulation material layer is arranged in the heat exchanger shell, a liner is arranged inside the heat insulation material layer and comprises a liner shell, the liner is filled with a phase-change material, the phase-change material accounts for 80-98% of the volume of the liner, a heat exchange coil is embedded in the phase-change material, electric heating mechanisms are evenly arranged in the phase-change material, a temperature sensor is arranged in the phase-change material, the phase-change material temperature sensor and the electric heating mechanisms are electrically connected to a controller, and the controller is installed on the heat exchanger shell. The phase-change energy-storage water heater is compact in structure, capable of achieving even heating, high in heat transfer performance and high in water outlet efficiency.